Chain saw guard

Details Chain saw guard Chain saw guard

1978-02-22

1979-03-13

Peters, Jimmy C.

Cutlery

Cutting tools

Saw

30151, 30371, B27B 1702

Patent

active

041434609

ABSTRACT:
A guard for the saw chain of a chain saw is provided by a group of "U" shaped channel members which are disposed in telescoping relationship over the upper reach of the saw chain and another group of similar channel members which are disposed in telescoping relationship over the lower reach of the saw chain. The channel members are captured and retained in the contour plate around which the saw chain is entrained. Snap-out buttons limit the maximum extension of the telescoping sections. Arrangements of springs urge the telescoping sections forwardly so that they extend over the saw chains. The snap-out buttons also provide bias in addition to that provided by the springs against retraction. Bars are pivotally mounted on the forwardmost of the channel members. These bars pivot against stops when they engage the log or other work to be sawed. The force applied to the telescoping sections through the bars retract the sections and gradually exposes the saw chain.

REFERENCES:
patent: 2638944 (1953-05-01), Woleslagle
patent: 2937673 (1960-05-01), Duperron
patent: 3754328 (1973-08-01), Knerr
patent: 3808684 (1974-05-01), Ludwig
patent: 4063358 (1977-12-01), Hodge

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